Canon FX7 Remanufactured Fax Machine Black Laser Toner Cartridge is compatible with Canon LC 710, LC 720I, LC 730I Fax Machines.

Toner is a powder used in laser printers and photocopiers to form the printed text and images on the paper. In its early form it was simply carbon powder. Then, to improve the quality of the printout, the carbon was melt-mixed with a polymer. Toner particles are melted by the heat of the fuser, and bind to the paper.

Toner has traditionally been made by compounding the ingredients and creating a slab which was broken or pelletized, then turned into a fine powder with a controlled particle size range by air jet milling. This process results in toner granules with varying sizes and aspherical shapes. To get a finer print, some companies are using a chemical process to grow toner particles from molecular reagents. This results in more uniform size and shapes of toner particles. The smaller, uniform shapes permit more accurate colour reproduction and more efficient toner use.

Remanufactured toner cartridges are now available to the average consumer. Remanufactured cartridges are sold at a lower cost than original toner cartridges, these cartridges have been recycled and refilled.